Browsing USN Open Archive by Title
Now showing items 7437-7456 of 10955
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Optimism and alienation – colour schemes and soundscapes as means for the social construction of risk in climate education videos
(Peer reviewed; Journal article, 2020)While the field of climate change communication has become increasingly interested in visual representations, there has been a lack of research that attempts to capture the breadth and variety of semiotic resources being ... -
Optimization of a biomass gasification reactor
(Master thesis, 2015-09-25)Steam gasification is a well-known technology which is used to produce a high quality product gas, especially for power generation applications. The gas composition, gas quality and the purity are important for the end ... -
Optimization of biomass gasification reactor using Aspen Plus
(Master thesis, 2015-10-30)Biomass is an ideal renewable and clean energy resource. Counties all over the world are paying more and more attention to biomass because it can effectively reduce greenhouse effect due to its zero carbon dioxide emission. ... -
Optimization of design and operation of anaerobic digestion reactors
(Master thesis, 2015-11-12)The sustainable provision of bio-methane plays a key role in the future energy supply and is a promising environmentally friendly solution for waste processing. With rising number and size of biogas power plants process ... -
Optimization of flow behavior in biomass gasification reactor
(Doctoral dissertations at TUC;2015:2, Doctoral thesis, 2015)Dual fluidized bed reactor for steam gasification of biomass is a promising technology and can be used in Combined Heat and Power (CHP) production. The producer gas from the reactor can have a calorific value up to 14 ... -
Optimization of gas velocity and pressure drop in CO2 absorption column
(Journal article; Peer reviewed, 2017)For a traditional amine-based CO2 capture system, the absorber column accounts for a significant part of the overall capital- and operating cost. One important design factor of absorber columns is the gas velocity through ... -
Optimization of gas velocity, pressure drop and column diameter in CO2 capture
(Master thesis, 2015-09-18)CO2 capture and storage (CCS) from fossil fuel fired power plants and also other large point sources is drawing increasing interest as a potential method for the control of greenhouse gas emissions. Among the different ... -
Optimization of lift gas allocation in a gas lifted oil field as non-linear optimization problem.
(Journal article; Peer reviewed, 2012)Proper allocation and distribution of lift gas is necessary for maximizing total oil production from a field with gas lifted oil wells. When the supply of the lift gas is limited, the total available gas should be optimally ... -
Optimization of partial CO₂ capture
(Master thesis, 2016)The cement industry accounts for about 5 % of the global anthropogenic CO₂ emissions. Traditional post-combustion CO₂ capture with monoethanolamine absorption is highly energy-intensive, which in turn leads to expensive ... -
Optimization of postable water treatment by coagulation
(Master thesis, 2016)Securing hygienic barriers and also removal of particles, natural organic matter and dissolved minerals are necessary factors in the treatment of surface water. The presence of natural organic matter has increased during ... -
Optimization of Small Urban Water Services in Developing Countries by Water Loss Management. Literature review with practical examples from Pacific Island countries
(Master thesis, 2011)Water is by far our most important natural resource needed to sustain all forms of life on our planet. Today we face depletion and increased scarcity of this precious resource. At the same time there is also a rapid ... -
An Optimization-Linked Intelligent Security Algorithm for Smart Healthcare Organizations
(Peer reviewed; Journal article, 2023)IoT-enabled healthcare apps are providing significant value to society by offering cost-effective patient monitoring solutions in IoT-enabled buildings. However, with a large number of users and sensitive personal information ... -
Optimized carbon dioxide removal model for gas fired power plant
(Journal article; Peer reviewed, 2012)The carbon capture process model was developed for 500MW gas-fired power plant flue gas treating. Three different efficiencies, 85%, 90%, and 95%, were used to implement the model in Aspen Plus. The electrolyte NRTL rate ... -
Optimized DRIE process for different size membranes fabricated simultaneously
(Master thesis, 2023)The rapid development of wireless communication systems raises the high demand for high Q factor resonators. To fabricate a high Q factor resonator, a precise membrane is important. It requires fabricating different sizes ... -
Optimized growth of iCL-CNT on a microstructured Al substrate for high energy density supercapacitors
(Master thesis, 2023)This study presents the synthesis of millimeter-tall interconnected cross-linked carbon nanotubes (iCL-CNTs) with high specific capacitance, grown directly on pre-etched Aluminium (Al) substrates. Atmospheric pressure ... -
Optimized Microstructure Al Substrate for iCL-CNT Growth for High Energy Density Supercapacitors
(Master thesis, 2023)The thesis study investigates the effect of Al surface morphology on the growth of inter-connected cross-linked carbon nanotubes for high-energy-density supercapacitors. This study aims to improve the electrochemical ... -
Optimized Ni Nanoparticle Deposition for iCL-CNT Growth for High Energy Density Supercapacitors
(Master thesis, 2023)This thesis investigates the effect of different sputter deposition parameters on the diameter, morphology, and distribution of nickel nanoparticles, and the consequently synthesized interconnected cross-linked carbon ... -
Optimizing ships‘ traveling speed for maximum voyage economic results
(Master thesis, 2021)Ship fuel is the single largest budget cost on a voyage. While bunker prices and freight rates are determined by the marked and macroeconomic conditions (e.g., trade, toll barriers), there seems to be an untapped potential ... -
Optimizing work and off-job motivation through proactive recovery strategies
(Journal article, 2024)Two employee-level experiences — off-job recovery and optimal work motivation — are vital for reducing or avoiding work stress and promoting occupational health and work performance. However, the interplay between employee ... -
Optimum conditions and maximum capacity at the amine-based CO2 capture plant at TCM Mongstad
(Master thesis, 2023)Using amine-based solutions is a mature method for CO2 capture. The study simulates this process for Technology Centre Mongstad (TCM) using a rate-based model in Aspen Plus. The main purpose is to develop a rigorous model ...